Return filed late by few minutes. is it a valid return?

I was filing the return for first time with Digital Signature last night. While filing I had the "fakepath error problem (reported by several other people on the forum) while uploading with Digital signature. By the time I figured out how to solve it the time was 12:05am. Will my return be accepted as filed in time or will it be considered filed late? Is there some grace period as far as efiling goes when there are technical issues like this? What to do in such a case? Who can I approach?